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スワイプジェスチャーを使用して、UIScrollView内で4つのUIViewControllerサブクラスをホストする偽のUITabBarControllerを使用してタブ間を移動します。それぞれのUIPanGestureRecognizersでスワイプを検出し、それに従ってタブを切り替えます。結果として得られる効果は、Snapchatで見られるようなコアナビゲーションです。ただし、これらの画面の1つには、独自のジェスチャ認識機能が組み込まれたマップビュー（マップマップマップ）が格納されています。2つのジェスチャ認識器を同時に使用してイベントを受信するにはどうすればよいですか？
画面の右端からスワイプを検出することで、ユーザーが地図上をスワイプして別のタブに移動できるようにしたいと考えています。私はUIPanGestureRecognizerを右側のこの領域にある見えないUIViewに追加しようとしましたが、これは不規則で、アニメートされていないタブスイッチを提供し、下のマップからタッチイベントを傍受します。
どのようにして、両方のジェスチャ認識機能がイベントを同時に受信するか、スワイプの開始位置とその距離と方向のみに基づいていくつかのイベントをフィルタリングすることを許可できますか？マップビューコントローラの
class KUSwipeViewController: EZSwipeController {
fileprivate var fakeTabBar: UIView!
fileprivate var tabBarHeight: CGFloat = 50
override func viewDidLoad() {
initUI()
}
override func setupView() {
super.setupView()
datasource = self
navigationBarShouldNotExist = true
}
func initUI() {
fakeTabBar = UIView(frame: CGRect(x: 0, y: Screen.height - tabBarHeight, width: Screen.width, height: tabBarHeight))
fakeTabBar.backgroundColor = .black
let tab0 = UIButton(frame: CGRect(x: Screen.width * 0.08, y: 9, width: 32, height: 32))
tab0.setBackgroundImage(#imageLiteral(resourceName: "tab-events"), for: .normal)
tab0.addTarget(self, action: #selector(tapped0), for: .touchUpInside)
fakeTabBar.addSubview(tab0)
let tab1 = UIButton(frame: CGRect(x: Screen.width * 0.32, y: 9, width: 32, height: 32))
tab1.setBackgroundImage(#imageLiteral(resourceName: "tab-feat"), for: .normal)
tab1.addTarget(self, action: #selector(tapped1), for: .touchUpInside)
fakeTabBar.addSubview(tab1)
let tab2 = UIButton(frame: CGRect(x: Screen.width * 0.58, y: 9, width: 32, height: 32))
tab2.setBackgroundImage(#imageLiteral(resourceName: "tab-chat"), for: .normal)
tab2.addTarget(self, action: #selector(tapped2), for: .touchUpInside)
fakeTabBar.addSubview(tab2)
let tab3 = UIButton(frame: CGRect(x: Screen.width * 0.82, y: 9, width: 32, height: 32))
tab3.setBackgroundImage(#imageLiteral(resourceName: "tab-profile"), for: .normal)
tab3.addTarget(self, action: #selector(tapped3), for: .touchUpInside)
fakeTabBar.addSubview(tab3)
view.addSubview(fakeTabBar)
}
func tapped0() {
self.moveToPage(0, animated: true)
}
func tapped1() {
self.moveToPage(1, animated: true)
}
func tapped2() {
self.moveToPage(2, animated: true)
}
func tapped3() {
self.moveToPage(3, animated: true)
}
}
extension KUSwipeViewController: EZSwipeControllerDataSource {
func viewControllerData() -> [UIViewController] {
let nav0 = UINavigationController()
let nav3 = UINavigationController()
let mapVC = EventMapViewController()
let featuredVC = FeaturedEventsViewController()
let chatVC = MessagesViewController()
let profileVC = ProfileViewController()
nav0.viewControllers = [mapVC]
nav3.viewControllers = [profileVC]
return [nav0, featuredVC, chatVC, nav3]
}
func titlesForPages() -> [String] {
return ["", "", "", ""]
}
func indexOfStartingPage() -> Int {
return 0
}
func changedToPageIndex(_ index: Int) {
Haptic.selection.generate()
}
}
コード：ビューコントローラをスワイプため
コードは
class EventMapViewController: CommonViewController {
fileprivate var mapView: MGLMapView!
fileprivate var statusBarView: UIView!
fileprivate var searchBar: FloatingSearchBar!
fileprivate var searchButton: UIButton!
fileprivate var filterButton: UIButton!
fileprivate var peekView: UIView!
fileprivate var architectView: UIView!
fileprivate var panArchitectView: UIView!
fileprivate var peekArchitectView: UIView!
fileprivate var peekLabel: UILabel!
fileprivate var panView: UIPanGestureRecognizer!
fileprivate let peekViewHeight: CGFloat = 140
fileprivate var selectedEvent: Event?
fileprivate var cardShowing: Bool = false
fileprivate var peekShowing: Bool = false
/*
override func statusBarStyle() -> UIStatusBarStyle {
return cardShowing ? .lightContent : .default
}
*/
override func navigationBarHidden() -> Bool {
return true
}
override func viewDidLoad() {
super.viewDidLoad()
initUI()
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "eventSegue" {
let dvc = segue.destination as! EventViewController
dvc.event = selectedEvent!
}
}
func initUI() {
mapView = MGLMapView(frame: view.bounds)
mapView.styleURL = (UIColor.theme == .light) ? URL(string: mbThemeLight)! : URL(string: mbThemeDark)!
mapView.showsUserLocation = true
mapView.userTrackingMode = .none
mapView.delegate = self
mapView.setCenter(CLLocationCoordinate2D(latitude: 34, longitude: -118), zoomLevel: 5, animated: false)
view.addSubview(mapView)
mapView.snp.makeConstraints { (make) in
make.edges.equalTo(view)
}
//architect view (for intercepting touch)
architectView = UIView(frame: self.view.bounds)
let gestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(EventMapViewController.handleTap(gestureRecognizer:)))
gestureRecognizer.delegate = self
architectView.addGestureRecognizer(gestureRecognizer)
architectView.isHidden = true
view.addSubview(architectView)
statusBarView = UIView()
statusBarView.backgroundColor = UIColor.clear
view.addSubview(statusBarView)
statusBarView.snp.makeConstraints { (make) in
make.left.right.top.equalTo(0)
make.height.equalTo(20)
}
searchButton = UIButton()
searchButton.backgroundColor = UIColor.kuLightBackground
searchButton.tintColor = (UIColor.theme == .light) ? UIColor.kuPrimary : UIColor.kuDeselected
searchButton.setImage(#imageLiteral(resourceName: "icon_search_white").withRenderingMode(.alwaysTemplate), for: .normal)
searchButton.layer.cornerRadius = 25
searchButton.layer.borderColor = UIColor.kuExtraLightBackground.cgColor
searchButton.layer.borderWidth = 1
searchButton.addTarget(self, action: #selector(searchButtonTapped(_:)), for: .touchUpInside)
view.addSubview(searchButton)
searchButton.snp.makeConstraints { (make) in
make.width.height.equalTo(50)
make.left.equalTo(24)
make.top.equalTo(34)
}
filterButton = UIButton()
filterButton.backgroundColor = UIColor.kuLightBackground
filterButton.tintColor = (UIColor.theme == .light) ? UIColor.kuPrimary : UIColor.kuDeselected
filterButton.setImage(#imageLiteral(resourceName: "icon_filter_white").withRenderingMode(.alwaysTemplate), for: .normal)
filterButton.layer.cornerRadius = 20
filterButton.layer.borderColor = UIColor.kuExtraLightBackground.cgColor
filterButton.layer.borderWidth = 1
filterButton.addTarget(self, action: #selector(filterButtonTapped(_:)), for: .touchUpInside)
view.addSubview(filterButton)
filterButton.snp.makeConstraints { (make) in
make.width.height.equalTo(40)
make.left.equalTo(80)
make.top.equalTo(40)
}
//peek view
peekView = UIView(frame: CGRect(x: 0, y: UIScreen.main.bounds.height, width: UIScreen.main.bounds.width, height: peekViewHeight))
peekView.backgroundColor = UIColor(white: 1, alpha: 0.5)
peekView.layer.cornerRadius = 10
view.addSubview(peekView)
//peek label
peekLabel = UILabel(frame: CGRect(x: 0, y: 12, width: UIScreen.main.bounds.width, height: 68))
peekLabel.font = UIFont.kuBoldFont(ofSize: 38)
peekLabel.textColor = .black
peekLabel.textAlignment = .center
peekView.addSubview(peekLabel)
//peek architect
peekArchitectView = UIView(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: peekViewHeight))
let peekGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(EventMapViewController.peekSelected(gestureRecognizer:)))
peekGestureRecognizer.delegate = self
peekArchitectView.addGestureRecognizer(peekGestureRecognizer)
peekView.addSubview(peekArchitectView)
loadEventAnnotations()
}
func enterPeekView() {
guard !peekShowing else { return }
architectView.isHidden = false
peekLabel.text = "\(selectedEvent!.title!) >"
peekView.cheetah
.move(0, peekViewHeight * -1)
.duration(0.18)
.easeOutExpo
.run()
peekShowing = true
}
func exitPeekView() {
guard peekShowing else { return }
architectView.isHidden = true
peekView.cheetah
.move(0, peekViewHeight)
.duration(0.18)
.easeInExpo
.run()
peekShowing = false
}
func loadEventAnnotations() {
RealmManager.shared.defaultRealm.objects(Event.self).forEach { (event) in
let annotation = EventAnnotation()
annotation.event = event
mapView.addAnnotation(annotation)
}
}
func searchButtonTapped(_ sender: UIButton) {
let eventSearchCardViewController = EventSearchCardViewController()
eventSearchCardViewController.delegate = self
UIApplication.rootViewController()?.presentCardViewController(eventSearchCardViewController)
}
func filterButtonTapped(_ sender: UIButton) {
let eventFilterCardViewController = EventFilterCardViewController()
eventFilterCardViewController.delegate = self
UIApplication.rootViewController()?.presentCardViewController(eventFilterCardViewController)
}
}
extension EventMapViewController: CardViewControllerDelegate {
func cardViewControllerWillAppear(cardViewController: CardViewController) {
cardShowing = true
setNeedsStatusBarAppearanceUpdate()
}
func cardViewControllerWillDisappear(cardViewController: CardViewController) {
cardShowing = false
setNeedsStatusBarAppearanceUpdate()
}
}
extension EventMapViewController: MGLMapViewDelegate {
func mapView(_ mapView: MGLMapView, didSelect annotation: MGLAnnotation) {
guard let eventAnnotation = annotation as? EventAnnotation else {
return
}
selectedEvent = eventAnnotation.event
enterPeekView()
}
func mapView(_ mapView: MGLMapView, annotationCanShowCallout annotation: MGLAnnotation) -> Bool {
return false
}
func mapView(_ mapView: MGLMapView, imageFor annotation: MGLAnnotation) -> MGLAnnotationImage? {
var annotationImage = mapView.dequeueReusableAnnotationImage(withIdentifier: UIColor.kuMarkerName)
if annotationImage == nil {
var image = UIImage(named: UIColor.kuMarkerName)!
image = image.withAlignmentRectInsets(UIEdgeInsets(top: 0, left: 0, bottom: image.size.height/2, right: 0))
annotationImage = MGLAnnotationImage(image: image, reuseIdentifier: UIColor.kuMarkerName)
}
return annotationImage
}
}
extension EventMapViewController: UIGestureRecognizerDelegate {
func handleTap(gestureRecognizer: UIGestureRecognizer) {
//close peek and keyboard on tap
view.endEditing(true)
if peekShowing {
exitPeekView()
}
}
func peekSelected(gestureRecognizer: UIGestureRecognizer) {
// performSegue(withIdentifier: "eventSegue", sender: nil)
let eventController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "EventViewController") as! EventViewController
self.navigationController?.pushViewController(eventController, animated: true)
}
}